from rest_framework import serializers
from goods.models import SPU,Brand,GoodsCategory

#1,spu序列化器
class SPUSerializer(serializers.ModelSerializer):

    #1,重写brand,brand_id
    brand = serializers.StringRelatedField(read_only=True)
    brand_id = serializers.IntegerField()

    #2,重写category,category_id
    category1 = serializers.StringRelatedField(read_only=True)
    category1_id = serializers.IntegerField()

    category2 = serializers.StringRelatedField(read_only=True)
    category2_id = serializers.IntegerField()

    category3 = serializers.StringRelatedField(read_only=True)
    category3_id = serializers.IntegerField()

    class Meta:
        model  = SPU
        fields = "__all__"

#2,spu brand序列化器
class SPUBrandSerializer(serializers.ModelSerializer):
    class Meta:
        model = Brand
        fields = ["id","name"]

#3,spu category序列化器
class SPUCategorySerializer(serializers.ModelSerializer):
    class Meta:
        model = GoodsCategory
        fields = ["id","name"]